Polar Smartwatch

Discover the ultimate Polar M400 Watch Battery Replacement guide! This step-by-step tutorial with images ensures an easy battery swap for your Polar Smartwatch.

Step-by-step Polar M400 Watch Screen Replacement guide with detailed instructions and images to help you easily repair your Polar Smartwatch.

Step-by-step DIY guide on how to replace the USB connector in your Polar M400 Watch. Fix charging issues with this detailed tutorial for Polar M400...